/* ===== 1. Reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
table{border-collapse:collapse;width:100%}

/* ===== 2. Tokens ===== */
:root{
  --ink-900:#07111F;
  --ink-850:#0A1524;
  --ink-800:#0D1B2E;
  --ink-700:#16324A;
  --cyan:#20E3D2;
  --orange:#FF6A2A;
  --amber:#FFB020;
  --paper:#F6F2E9;
  --mist:#A9B8CC;
  --steel:#C9D6E6;
  --green:#56D68B;
  --red:#FF4D5E;
  --glass:rgba(22,50,74,.52);
  --glass-strong:rgba(22,50,74,.86);
  --line:rgba(201,214,230,.14);
  --line-cyan:rgba(32,227,210,.34);
  --font-display:"Barlow Condensed","Oswald","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --header-h:66px;
  --radius:3px;
  --radius-lg:6px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ===== 3. Base typography ===== */
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  letter-spacing:.01em;
  color:var(--steel);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(circle at 10% 4%,rgba(32,227,210,.08),transparent 44%),
    radial-gradient(circle at 92% 0%,rgba(255,106,42,.07),transparent 40%),
    radial-gradient(rgba(201,214,230,.06) 1px,transparent 1px);
  background-repeat:no-repeat,no-repeat,repeat;
  background-size:64% 64%,58% 58%,26px 26px;
  background-position:0 0,100% 0,0 0;
}
h1,h2,h3,h4,h5{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.06;
  letter-spacing:-.02em;
  color:var(--paper);
}
h1{font-size:clamp(2rem,4.4vw,3.4rem)}
h2{font-size:clamp(1.5rem,2.8vw,2.25rem)}
h3{font-size:clamp(1.15rem,1.8vw,1.5rem)}
p{max-width:46em}
strong{color:var(--paper);font-weight:700}
::selection{background:var(--cyan);color:var(--ink-900)}

/* ===== 4. Focus & skip link ===== */
:where(a,button,summary,input,select,textarea,[tabindex]):focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  border-radius:2px;
}
.skip-link{
  position:fixed;top:0;left:0;z-index:300;
  padding:12px 20px;
  background:var(--cyan);color:#04121A;
  font-family:var(--font-mono);font-size:13px;font-weight:700;
  border-radius:0 0 var(--radius) 0;
  transform:translateY(-120%);
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:translateY(0)}
#main-content{scroll-margin-top:calc(var(--header-h) + 16px)}

/* ===== 5. Layout ===== */
.shell{
  width:min(1280px,calc(100% - 48px));
  margin-inline:auto;
}
.site-main{display:block;min-height:40vh}
.page-section{padding-block:clamp(40px,6vw,80px)}
.page-section--tight{padding-block:clamp(24px,3.5vw,44px)}
.page-section--band{
  background:linear-gradient(180deg,var(--ink-800),var(--ink-850));
  border-block:1px solid var(--line);
}
.grid{display:grid;gap:clamp(16px,2.2vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--asym{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.stack{display:flex;flex-direction:column;gap:14px}

/* ===== 6. Page head / index labels ===== */
.page-head{padding-block:clamp(32px,5vw,64px) clamp(20px,3vw,36px)}
.page-head__index{
  display:inline-block;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--cyan);
  padding-bottom:10px;
}
.page-head__title{font-size:clamp(2.1rem,5vw,3.75rem);letter-spacing:-.035em}
.page-head__lead{margin-top:16px;color:var(--mist);font-size:17px}
.index-label{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--mist);
}
.index-label::before{content:"";width:18px;height:2px;background:var(--orange)}

/* ===== 7. Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;
  border:1px solid transparent;border-radius:var(--radius);
  font-family:var(--font-body);font-size:14px;font-weight:700;letter-spacing:.02em;
  cursor:pointer;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease);
}
.btn--primary{
  background:var(--orange);color:#08121D;
  box-shadow:0 10px 24px -14px rgba(255,106,42,.95),inset 0 0 0 1px rgba(255,255,255,.12);
}
.btn--primary:hover{background:#FF8347;transform:translateY(-2px)}
.btn--ghost{
  background:var(--glass);border-color:var(--line);color:var(--paper);
}
.btn--ghost:hover{border-color:var(--line-cyan);background:rgba(22,50,74,.78)}

/* ===== 8. Brand ===== */
.brand{
  display:inline-flex;align-items:center;gap:12px;
  flex:0 0 auto;color:var(--paper);
}
.brand__mark{
  position:relative;display:block;flex:0 0 auto;
  width:36px;height:36px;
  background:
    linear-gradient(135deg,var(--cyan) 0 48%,transparent 48%),
    linear-gradient(315deg,var(--orange) 0 52%,var(--ink-700) 52%);
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand__mark::after{
  content:"";position:absolute;inset:9px;
  background:var(--ink-900);
  clip-path:polygon(0 0,100% 0,100% 62%,62% 100%,0 100%);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__name{
  font-family:var(--font-display);font-weight:700;
  font-size:20px;letter-spacing:-.01em;color:var(--paper);
}
.brand__tag{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.09em;
  color:var(--mist);margin-top:3px;
}
.brand--footer .brand__name{font-size:22px}

/* ===== 9. Header / command bar ===== */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(7,17,31,.94);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border-bottom:1px solid var(--line);
}
.site-header__progress{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:rgba(32,227,210,.12);overflow:hidden;
}
.site-header__progress-bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--amber),var(--orange));
  transition:width .12s linear;
}
.site-header__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:var(--header-h);
}

.site-nav{display:flex;align-items:center;gap:clamp(6px,1.4vw,20px)}
.site-nav__list{display:flex;align-items:center;gap:2px;flex-wrap:nowrap}
.site-nav__item{display:block}
.site-nav__link{
  position:relative;
  display:inline-flex;align-items:baseline;gap:7px;
  padding:9px 10px;border-radius:var(--radius);
  font-size:13.5px;font-weight:500;color:var(--mist);
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.site-nav__link:hover{color:var(--paper);background:rgba(22,50,74,.66)}
.site-nav__link[aria-current="page"]{color:var(--paper);font-weight:700}
.site-nav__link[aria-current="page"]::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;
  background:var(--cyan);border-radius:2px;
}
.site-nav__index{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;
  color:rgba(32,227,210,.78);transition:color .18s var(--ease);
}
.site-nav__link[aria-current="page"] .site-nav__index{color:var(--amber)}
.site-nav__status{
  display:inline-flex;align-items:center;gap:7px;
  padding-left:14px;border-left:1px solid var(--line);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--mist);
}
.site-nav__status-dot{
  width:6px;height:6px;border-radius:50%;background:var(--green);
  box-shadow:0 0 0 3px rgba(86,214,139,.18);
}
.site-nav__actions{display:flex;align-items:center}
.site-nav__cta{padding:9px 16px;font-size:13px}

/* ===== 10. Nav toggle ===== */
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:8px 12px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--glass);color:var(--paper);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  cursor:pointer;
  transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--line-cyan)}
.nav-toggle__bars{display:grid;gap:4px;width:16px}
.nav-toggle__bar{
  display:block;height:2px;width:100%;border-radius:2px;background:var(--cyan);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__label{line-height:1}

/* ===== 11. Panels / cards / tags ===== */
.panel{
  position:relative;
  padding:clamp(18px,2.4vw,28px);
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.panel--solid{background:var(--ink-800);border-color:rgba(201,214,230,.1)}
.card{
  position:relative;
  padding:clamp(16px,2vw,24px);
  background:var(--glass);
  border:1px solid var(--line);
  border-left:2px solid rgba(32,227,210,.4);
  border-radius:var(--radius-lg);
  transition:transform .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.card:hover{
  transform:translateY(-3px);
  border-color:var(--line-cyan);
  background:rgba(22,50,74,.72);
}
.card__title{margin-bottom:8px;font-size:clamp(1.05rem,1.6vw,1.3rem)}
.card__excerpt{font-size:14.5px;color:var(--mist)}
.tag{
  display:inline-flex;align-items:center;
  padding:3px 9px;border-radius:999px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--orange);border:1px solid rgba(255,106,42,.4);
  background:rgba(255,106,42,.1);
}

/* ===== 12. Score strip ===== */
.score-strip{
  display:flex;align-items:center;gap:clamp(10px,2vw,24px);
  padding:12px 18px;
  background:linear-gradient(90deg,rgba(22,50,74,.9),rgba(13,27,46,.9));
  border-left:3px solid var(--amber);
  border-radius:var(--radius);
  overflow-x:auto;
}
.score-strip__team{
  font-family:var(--font-display);font-weight:700;font-size:15px;
  color:var(--paper);white-space:nowrap;
}
.score-strip__score{
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(20px,3vw,28px);line-height:1;
  color:var(--amber);letter-spacing:.04em;white-space:nowrap;
}

/* ===== 13. Status chips ===== */
.status-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 11px;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(22,50,74,.42);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:var(--steel);
  white-space:nowrap;
}
.status-chip__dot{width:6px;height:6px;border-radius:50%;background:var(--steel);flex:0 0 auto}
.status-chip--live{color:var(--green);border-color:rgba(86,214,139,.34);background:rgba(86,214,139,.09)}
.status-chip--live .status-chip__dot{background:var(--green);box-shadow:0 0 0 3px rgba(86,214,139,.16)}
.status-chip--warm{color:var(--amber);border-color:rgba(255,176,32,.32);background:rgba(255,176,32,.08)}
.status-chip--warm .status-chip__dot{background:var(--amber)}

/* ===== 14. Media frames ===== */
.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;
  background:linear-gradient(135deg,var(--ink-700),var(--ink-850));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
}
.media-frame>img,.media-frame>video{
  width:100%;height:100%;object-fit:cover;
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(7,17,31,.55) 1px,transparent 1px);
  background-size:5px 5px;
  mix-blend-mode:multiply;opacity:.5;
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame--square{aspect-ratio:1/1}

/* ===== 15. Breadcrumb / prose / toc ===== */
.breadcrumb{padding-block:16px 0}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__item{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--mist);
}
.breadcrumb__item+.breadcrumb__item::before{content:"/";color:rgba(169,184,204,.5)}
.breadcrumb__link{color:var(--mist);border-bottom:1px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease)}
.breadcrumb__link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.breadcrumb__item[aria-current="page"]{color:var(--paper)}

.prose{max-width:44em}
.prose p{margin-bottom:1.1em;font-size:16.5px;line-height:1.78;color:var(--steel)}
.prose p:last-child{margin-bottom:0}
.prose h2{margin-block:1.6em .6em}
.prose h3{margin-block:1.4em .5em}
.prose ul,.prose ol{margin-bottom:1.1em;padding-left:1.2em;list-style:disc}
.prose li{margin-bottom:.5em}
.prose strong{color:var(--paper)}

.page-toc{
  position:sticky;top:calc(var(--header-h) + 24px);
  align-self:start;
  padding:18px;
  background:rgba(22,50,74,.4);
  border:1px solid var(--line);border-radius:var(--radius-lg);
}
.page-toc__title{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--mist);margin-bottom:12px;
}
.page-toc__list{display:flex;flex-direction:column;gap:2px}
.page-toc__item{display:block}
.page-toc__link{
  display:block;padding:6px 8px;border-radius:2px;
  font-size:13px;color:var(--mist);
  border-left:2px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.page-toc__link:hover{color:var(--paper);background:rgba(22,50,74,.7)}
.page-toc__link[aria-current="true"]{
  color:var(--cyan);border-left-color:var(--cyan);background:rgba(32,227,210,.08);font-weight:700;
}

/* ===== 16. Footer ===== */
.site-footer{
  position:relative;margin-top:clamp(48px,7vw,96px);
  background:linear-gradient(180deg,var(--ink-850) 0%,var(--ink-900) 62%);
  border-top:1px solid var(--line);
  color:var(--mist);
}
.site-footer__beam{
  height:3px;
  background:linear-gradient(90deg,var(--cyan),var(--amber) 46%,var(--orange) 72%,transparent);
}
.site-footer__inner{
  display:grid;
  grid-template-columns:minmax(0,1.45fr) minmax(0,.85fr) minmax(0,1.1fr);
  gap:clamp(24px,4vw,56px);
  padding-block:clamp(40px,6vw,72px) clamp(26px,3.4vw,40px);
}
.site-footer__brand-col{display:flex;flex-direction:column;gap:16px;min-width:0}
.site-footer__statement{font-size:14.5px;line-height:1.75;color:var(--mist);max-width:34em}
.site-footer__status{display:flex;flex-wrap:wrap;gap:8px}
.site-footer__col{min-width:0}
.site-footer__title{
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;
  color:var(--paper);margin-bottom:16px;padding-bottom:10px;
  border-bottom:1px solid var(--line);
}
.site-footer__links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 14px}
.site-footer__link{
  display:block;padding:6px 0;
  font-size:14px;color:var(--mist);
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.site-footer__link:hover{color:var(--cyan);border-bottom-color:rgba(32,227,210,.45)}

.contact-list{display:flex;flex-direction:column;gap:14px}
.contact-list__item{
  display:grid;grid-template-columns:minmax(0,1fr) auto;
  gap:4px 10px;align-items:center;
}
.contact-list__label{
  grid-column:1 / -1;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;
  text-transform:uppercase;color:rgba(169,184,204,.78);
}
.contact-list__value{
  font-family:var(--font-mono);font-size:13px;line-height:1.5;
  color:var(--paper);word-break:break-word;min-width:0;
}
.contact-list__item--wide{grid-template-columns:minmax(0,1fr)}
.copy-btn{
  flex:0 0 auto;
  padding:3px 10px;border-radius:999px;
  border:1px solid var(--line-cyan);color:var(--cyan);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
  cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.copy-btn:hover{background:rgba(32,227,210,.14)}
.copy-btn[data-copied="true"]{
  color:var(--green);border-color:rgba(86,214,139,.6);background:rgba(86,214,139,.12);
}
.site-footer__note{
  margin-top:14px;font-size:12.5px;line-height:1.65;
  color:rgba(169,184,204,.82);
}
.site-footer__bottom{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;
  padding-block:18px 26px;
  border-top:1px solid var(--line);
}
.site-footer__copy,
.site-footer__icp{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;
  color:rgba(169,184,204,.8);max-width:none;
}
.site-footer__icp{margin-left:auto}
.back-to-top{
  padding:6px 14px;border-radius:var(--radius);
  border:1px solid var(--line);color:var(--steel);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  cursor:pointer;
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.back-to-top:hover{color:var(--cyan);border-color:var(--line-cyan);background:rgba(32,227,210,.08)}

/* ===== 17. Responsive ===== */
@media (max-width:1180px){
  .brand__tag{display:none}
  .site-nav__status{display:none}
}
@media (max-width:1024px){
  .site-footer__inner{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .site-footer__brand-col{grid-column:1 / -1}
  .site-footer__icp{margin-left:0}
}
@media (max-width:960px){
  .shell{width:calc(100% - 32px)}
  .nav-toggle{display:inline-flex;order:3}
  .site-header__inner{gap:12px}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    padding:10px 16px 24px;
    max-height:72vh;overflow-y:auto;
    background:linear-gradient(180deg,#0B1727,#060F1B);
    border-bottom:1px solid var(--line-cyan);
    box-shadow:0 30px 60px -20px rgba(0,0,0,.85);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
  }
  .site-nav[data-open]{
    opacity:1;visibility:visible;transform:none;
  }
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .site-nav__item{width:100%}
  .site-nav__link{
    width:100%;justify-content:flex-start;
    padding:15px 10px;font-size:16px;
    border-bottom:1px solid rgba(201,214,230,.09);
    border-radius:0;
  }
  .site-nav__index{font-size:11px}
  .site-nav__link[aria-current="page"]::after{
    left:0;right:auto;top:12px;bottom:12px;width:3px;height:auto;
  }
  .site-nav__status{
    display:inline-flex;margin-top:16px;padding-left:0;border-left:0;
  }
  .site-nav__actions{margin-top:14px}
  .site-nav__cta{width:100%;padding:13px 18px;font-size:15px}
  .grid--2,.grid--3,.grid--asym{grid-template-columns:minmax(0,1fr)}
  .page-toc{position:static;margin-bottom:24px}
}
@media (max-width:720px){
  .site-footer__inner{grid-template-columns:minmax(0,1fr);gap:28px}
  .site-footer__links{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-footer__bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .site-footer__copy,.site-footer__icp{font-size:11px}
  .back-to-top{align-self:flex-start;margin-top:6px}
  .page-head__lead{font-size:16px}
  .prose p{font-size:16px}
}
@media (max-width:400px){
  .brand__name{font-size:18px}
  .site-footer__links{grid-template-columns:minmax(0,1fr)}
}

/* ===== 18. Reduced motion ===== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .card:hover,.btn--primary:hover{transform:none}
}